#20117: TcRnUnknownMessage: GHC.Tc.TyCl.Class
This is a 1st stab at converting TcRnUnknownMessage
as part of #20117 (closed).
It is on the 1st message (out of 7) found in GHC.Tc.TyCl.Class.
I have briefly commented under the new entry TcRnIllegalHsigDefaultMethod
in TcRnMessage
, in
a format similar to others.
I found a test case, with the same message, bkpfail40
, which passes.